Image processing apparatus, method for controlling image processing apparatus, and storage medium

a technology for image processing and image processing equipment, which is applied in the direction of visual presentation, instruments, computing, etc., can solve the problem of processing taking longer to compl

Active Publication Date: 2018-02-08
CANON KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present patent helps to improve the efficiency of creating bit map images by switching between different processing tasks. This allows for faster acquisition of necessary memory without delay.

Problems solved by technology

With the existing art, when there is no free memory for generating intermediate data or no free memory for spooling image data, it is necessary to wait for the memory to be released, and this can cause the process to take longer to complete.

Method used

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  • Image processing apparatus, method for controlling image processing apparatus, and storage medium
  • Image processing apparatus, method for controlling image processing apparatus, and storage medium
  • Image processing apparatus, method for controlling image processing apparatus, and storage medium

Examples

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first embodiment

[0028]FIG. 1 is a diagram illustrating a configuration of a data processing system including an image processing apparatus indicating an embodiment of the present disclosure. This system has a configuration in which an image formation apparatus 101 and an image processing apparatus 102 are connected to each other over a network 103.

[0029]In FIG. 1, when a user performs printing using an application for the image processing apparatus 102, print data is generated by a driver and transmitted to the image formation apparatus 101 over the network 103. The image formation apparatus 101 performs printing on the basis of the print data.

[0030]FIG. 2 is a block diagram illustrating a hardware configuration of the image formation apparatus 101 illustrated in FIG. 1. In FIG. 2, the image formation apparatus 101 includes a read-only memory (ROM) 401, a random-access memory (RAM) 402, a central processing unit (CPU) 403, a hard disk drive (HDD) 404, a network interface (I / F) 405, an engine I / F 40...

second embodiment

[0073]The first embodiment has described securing a bit map memory for each page during generation of intermediate data. Hereinafter, the second embodiment will describe an example of, when performing first tile conversion processing, previously acquiring a bit map memory to be used in common to pages in preparation for second tile conversion processing, and sharing between pages the bit map memory firstly secured by managing release information about the bit map memory.

[0074]FIG. 11 is a flowchart illustrating a method for controlling an image processing apparatus indicating the present embodiment. This example is a detailed procedure of a bit map memory acquisition flow of S1003 illustrated in FIG. 4. Each step is implemented by a CPU 403 executing a stored control program. The following principally describes modules to be executed by the CPU 403 illustrated in FIG. 3.

[0075]In response to a request for bit map memory acquisition, a memory management unit 207 calculates a bit map m...

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Abstract

An image processing apparatus for storing, in an intermediate data memory, intermediate data generated from print data, and processing the intermediate data is provided. The image processing apparatus has a configuration in which, in a case where it is determined that a size of a work memory exceeds a block size after processing for creating a first bit map is started, and where the processing for creating the first bit map is switched to processing for creating a second bit map, when the processing for creating the first bit map is started, processing for creating a bit map is started without delay by using a bit map memory in advance from the work memory.

Description

BACKGROUNDField[0001]The present disclosure relates to an image processing apparatus, a method for controlling the image processing apparatus, and a storage medium.Description of the Related Art[0002]Conventionally, in image processing apparatuses that process image data, there is a technique of printing images at a high speed by converting the image data into image data of each block and performing subsequent image processing in parallel on a block-by-block basis during image drawing processing. The processing for converting the image data into image data of each block is referred to as block forward conversion processing.[0003]In the block forward conversion processing, data of predetermined block height is input into a work memory in page line order, and the data is output in block order.[0004]Japanese Patent Laid-Open No. 2014-753 discloses a method for performing block division of vector-format data that occurs before rasterization and is input into a work memory, and a techniq...

Claims

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Application Information

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Patent Type & AuthorityApplications(United States)
IPC IPC(8): G06K15/02
CPCG06K15/1886G06K15/1836G06K15/184
InventorONO, TAKASHI
OwnerCANON KK